Unnamed (Kipchuk River area)

The Unnamed (Kipchuk River area) is a zinc, lead, mercury, copper, and silver mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (Kipchuk River area)

Commodity

Primary: Zinc
Primary: Lead
Primary: Mercury
Primary: Copper
Primary: Silver
Secondary: Tin

Location

State: Alaska
District: Aniak

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Quartz and tourmaline replacement, oxidation.

Rocks

Not available

Analytical Data

Not available

Materials

Gangue: Tourmaline
Gangue: Quartz

Comments

Comment (Workings): Workings / Exploration = Reconnaissance surface observation and geochemical sampling has occurred at this site.

Comment (Deposit): Model Name = Polymetallic veins (Cox and Singer, 1986; model 22c).

Comment (Geology): Geologic Description = At this occurrence, waterlain tuff near the base of the Kipchuk volcanic field is partially to completely replaced by quartz and tourmaline (Frost, 1990, p. C4). The altered rocks weather as bright red, vegetation-free areas. Rock samples contain up to 70 ppm Ag, 1,500 ppm As, greater than 2,000 ppm B, 1,000 ppm Cu, 2,000 ppm Pb, 1,500 ppm Sb, 100 ppm Sn, greater than 20,000 ppm Zn, and greater than 36 ppm Hg (Frost, 1990; Frost and others, 1992). Gold was detected at less than 0.05 ppm in one sample. The Kipchuk volcanic field is a large area of Upper Cretaceous andesite, basalt, tuff, and local rhyolite in the uplands between the Kipchuk and Aniak River drainages (Box and others, 1993).

Comment (Geology): Age = Post-Late Cretaceous. Quartz and tourmaline replace volcanic rocks of the Kipchuk volcanic field that locally yield 69 to 71 Ma K/Ar ages (Box and others, 1993).

Comment (Reference): Primary Reference = Frost, 1990

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Box, S.E, Moll-Stalcup, E.J., Frost, T.P., and Murphy, J.M., 1993, Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, southwestern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2226-A, 20 p., scale 1:250,000.

Reference (Deposit): Frost, T.P., Bradley, L., O'Leary, R.M., and Motooka, J., 1992, Geochemical results and sample locality map for rock samples from the Bethel and southern part of the Russian Mission 1:250,000 quadrangles, Alaska: U.S. Geological Survey Open-File Report 92-316, 229 p.

Reference (Deposit): Frost, T.P., 1990, Geology and geochemistry of mineralization in the Bethel quadrangle, southwestern Alaska, in Goldfarb, R. J., Nash, J. T., and Stoeser, J. W., eds., Geochemical studies in Alaska by the U.S. Geological Survey, 1989: U.S. Geological Survey Bulletin 1950, p. C1-C9.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.